Do You Know Sewage Treatment
It is well known
that magnesium hydroxide can be used as a flame retardant, but many people do
not know, in fact, magnesium hydroxide can still treat sewage, especially in
the treatment of dyeing wastewater, played a crucial role.
In
textile industry, printing and dyeing waste water pollution is serious, not
only contains significant amounts of organic pollutants and some toxic
substances, have color contains certain dyes and at the same time, how to
remove the color and organic pollutants is the key of the governance in
printing and dyeing wastewater decolorizing treatment in recent years,
magnesium salt law shows excellent decolorizing effect its decoloring principle
is the use of magnesium salt alkaline generate positively charged magnesium
hydroxide precipitation, strong adsorption of anionic dye negatively charged
and make the dye wastewater decolorizing, think in the in-depth research,
magnesium salts adsorption placed time shoulds not be more than otherwise would
occur after desorption influence decoloring effect, therefore, carries on the
solid-liquid separation for as soon as possible Decolorization has an important
effect.
Magnesium
hydroxide adsorption has a better decolorization effect, when the combination
of the two decolorization effect is better combined with magnesium hydroxide
adsorption by the microfiltration treatment, the permeate is colorless, clear
and transparent, is very likely to be used as printing and dyeing water
recovery, which is simple magnesium hydroxide adsorption can not achieve;
Look
from the technological process, magnesium hydroxide adsorption process often
involves the process of flocculation, sedimentation, process complex, covers an
area of big and may have the possibility of dye molecules desorption, and by
combining microfiltration process of adsorption, can add pretreatment agent in
microfiltration device, direct cycle filtering, realized the integration of the
rapid separation, the process is simple. Using magnesium hydroxide adsorption
pretreatment of ceramic membrane microfiltration technology of printing and
dyeing wastewater containing reactive dyes decolorizing treatment is completely
feasible, has the advantage that the decolorization rate is high, the operation
is simple, has a great feasibility and economic value.
Meishen
is the world's leading producer of magnesium oxide, Magnesium oxide is an oxide
of magnesium, an ionic compound. It is a white solid at room temperature.
Magnesium oxide exists in the form of periclase in nature and is a raw material
for magnesium smelting. Magnesium oxide is white or light yellow powder,
odorless, tasteless, this product is insoluble in water and ethanol, melting
point 2852 ° C, boiling point 3600 ° C, magnesium oxide has high refractory
insulation properties. It can be converted into crystal by burning at a
temperature above 1000 ° C. If it rises above 1500 ° C, it will form a burnt
magnesia or sintered magnesia.
Magnesium
oxide can be used in the manufacture of metallurgy, smelting, advanced magnesia
bricks, refractory materials and moisturizing materials. It is also widely used
in rubber, rubber sheet, rubber products, pharmaceutical industry, food
industry, plastic sheet accelerator, glass fiber reinforced plastics and
Surface coating of silicon steel sheet, paper production, steel ball polishing,
leather treatment, insulation materials, grease, dyes, ceramics, desiccant,
resin, flame retardant, etc.
Hebei
Meishen Chemical Technology Group is the main magnesium oxide producer in the
world. It is also the largest magnesium salt producer in China and has won the
ISO9002 quality system certification. It also has GMP-Certification.
With
rich experience in the research, development, production, management and
operation of magnesium oxide products, Meishen Group has always attached great
importance to the research and development of new products and strict
requirements on product quality. Meishen has a high-level sales team. The
business covers more than 20 countries and regions around the world. It is
widely welcomed by new and old customers.
Tell:+8613833967259
Email:admin@mgochem.com
Wesite:http://www.72meihouwang.com/
Meishen
has a high-level sales team. The business covers more than 20 countries and
regions around the world. It is widely welcomed by new and old customers.